The Fe-Ni permalloy has been widely studied in recent decades owing to its extraordinary magnetic permeability, low coercivity, high saturation magnetization, mechanical strength, and magneto-electric characteristics. In recent years, the additive manufacturing (AM) technologies have emerged as an attractive way for designing soft magnetic materials. Recently, it was shown that the residual stress caused by AM and the underlying phase transitions could be key for tuning the coercivity in an AM-processed Fe-Ni permalloy. However, due to the delicate interplay of process conditions and resulting properties, it is still difficult to understand the residual stress in AM and its interactions with other physical processes, such as thermal and mass transfer, grain coarsening and coalescence, and phase transition. For instance, the temperature gradient mechanism explains the generation of residual stress by considering the heating mode and the cooling mode by employing the idealized homogeneous layers, which is significantly different from the AM conditions. In this work, Yangyiwei Yang et al from the Institute of Materials Science, Technische Universit？t Darmstadt, developed a powder-resolved multiphysics-multiscale simulation scheme to investigate the hysteresis tailoring of Fe-Ni permalloy by AM under a scenario close to practical experiments. The underlying physical processes, including the coupled thermal-structural evolution, chemical order-disorder transitions, and associated thermo-elasto-plastic behaviors, were explicitly considered and bridged by accounting for their chronological-spatial differences. The influences of processing parameters (notably the beam power and scan speed) were analyzed and discussed on distinctive aspects, including the size of the fusion zone, the development of residual stress and accumulated plastic strain, the = ’ transition under the residual stress, and the resulting magnetic coercivity of manufactured parts. This work provides transferable insights in selecting processing parameters and optimizing routine for producing permalloy using AM, and delivers a comprehensive understanding of tailoring the hysteresis of soft magnetic materials in unconventional processing.